【顺风而呼】〖shn fng ér h〗[promote a public cause; champion a cause]

顺理成章著诗典，

风尘物表汉英翻。

而封比屋贤才济，

呼应八方大同寰。

顺着风向呼喊，声音传得远，使人听得清。比喻凭借外力可有较好效果。Shouting along wind, voice spread far away, Make People listen clear. Metaphor is with external force can have better effect.同：顺风扯旗。